Auxiliary air-supply device for gasolene-engines.



J. I.. HOLTON. AUXILIABY AIR SUPPLY DEVICE FOR GASOLBNE ENGINES.

APPLICATION FILED DBO. 6, 1911.

1,0'70,1 31 Patented Aug. 12, 1913l 2g I @inve/VITO@ @wi/tweeen .Term L. Hemert, or Lit-snow, omo.

nomas-f.

siseommitn of Letters Patent.

Patented Allg. 12, 1913.

To. all whom zmay concern:

Be it known that I, JOHN L. HOLT'ON, al citizen of the United States, residing, at Lisbon, in the count-y of Columbia-na and State of Ohio, have invented a new and useful Auxiliary Air-Supply Device for Gasolene- Engines7 of which the following is a specication. t i

This invention has reference to `improvements' in auxiliary air supply devices for' gasolene' engines, and is designed tQ-provide a device which may be applied to the intake manifold of a ga'sol'ene'engine between the carbureter and the intake valve to cause an at-omati'c regulationof the air supply in ac'- cordancewith the speed of the engine; and to provide a' priming means forstarting'the engine and means' for decarbonizing. th'eengine as needed. v

' To these endsy theV device comprises a vette structure which may be readily adjusted as' to thedegree ofopenin and which when in,- stalled' will cause an in]e'cti'o'n of air'- into the intake manifold of the engine' in tine streams, thereby thoroughly intermixing with'. the charge traveling from the carbureter' to the engine', and the' device' is so arranged that aj priming yquantity of gasolene' may be placed therein to' be drawn by the turnin'fr over of the' engine intov the cylinder for the ii'iitial startin' and since kerosene 1s a softening" I agent or carbon deposits in gasolene en# gines, the deviceprovides a. means whereby kerosene may beintroducedin any desired quantity into the engine While running to cause asoftening' of any carbon deposits s0 that the latter are blown out of the' engine wit-h the exhaust, wherefore by an occasional application of kerosene` the engine' may be kept practically' free from' carbon deposlts'.v The invention will' be best` understood i from' consideration of the' followingde tailedde'scription takenin connection with the' accompanying drawings forr'ningl a part ofth'iss ecification, that while' the drawings illust-rate a practical" form of the invention the latter is sus. ceptible of various changes' and: modificatlonsi and, therefore, the' invention is not with the understanding Appieanon mea n'eemb'e'r s, 19111. s'enai' noi 664,234.

t limited to Aany strict conformity with the showing of the drawings, but the structure may be'va'riously changed and modified so 10mg-as the salient features of the invent-ion t are retained and the' result sought is obtained. g

A In the'drawings:-l3`.igure 1 is an elevation of the attachment showing a small section ofthe manifold of an engine in longitudinal`v section. ig. 2' is a central section j' through the attachment shown in Fig. l. g Fi 3 is a central section through the intake f en vvof the device but drawn to a larger scale than the other figures. Fig. is a section on I the line of Fig. 1 with the retaining device for the adjustable cap member moved t away from the cap beyond the point of section to show the inner face of said retaining member, distant parts being omitted. Figs. 5 and 6 are lan views of modified forms of inlet valve isks.- 1 Referring to the drawings there is shown in Fig. 1f a conduit 1 which may betaken as illustrating. in partthe manifold of a gasoleneengine between the carburetor and the -Vi-nt'alze 'valve of theengine, and as the device of the present invention isV designed as an attachment capable of al'ipli'cationl to the 'manifolds of installed engines itA is deemed 'unnecessary to show' more' than a portion of the manifold.

The device of the present invention-includesa valve 2 terminating. at one end in a threaded neck 3`- designed to beattached to themanifold I by meansof a tapped passage Vformed'.through, the Wall of the manifold. f Secured to the end 3 of the valve isa tube 4 terminating Aat the end remote from the valve in al head 5Y and intermedately this tube is provided' with numerous perforation-S :6. The' tube 4 is' of a diameter' to enter a 'countersunlr port-ion' of the' b ore of thethreaded' end' 3 of the valve' body', while the head' 5 is. expanded to approximately the same diameter as thej threaded end' 3' and between these two point-s the tube' 4 is surrounded' by a' gauze sleeve 7 wherefore the passages 6 discharge into a' chamber detned bythe' tube 4 and sleeve 7, andany'fluid discharged into this chamberwill find its way into the manifold in a multitude of small streams through the interstices of the gauze.-

The movable part or spigot of the Valve 2 has its stein connected to a rod 8 which in the installed device extends to a ready point of access and in an automobile this point of access will be adjacent the dash so that the operator may manipulate the valve as found necessary. The valve 2 while shown 1n the drawings as of the ordinary pet cock type, may be of any suitable type.

The manifold 1 is customarily upright and the valve 2 is usually a plied so that the tube 4 is approximately horizontal where entering the manifold and in any event extends transversely of the manifold.' Under these circumstances there is applied to that end of the valve 2 remote from the threaded end 3 an'elbow 9 which 'at the end remote from the valve 2 is entered by the threaded end of a tube or pipe 11, which when 1 n installed position is upright or approximately so. from the threaded end 10 is expanded, asindicated at 12, and this expanded end has external screw threads 13 adapted to receive an internally threaded annular iiange 14 of a cap l5, which latter is contracted into an axially extended neck 16 on the side remote from the flange 14 and the cap 15 is pro-v vided with a milled edge 17 for convenience of manipulation.

The flange 14 of the cap 15 at the edge remote from the cap is formed withteeth or notches 18 which may be in the form of a circular series extending entirely about the corresponding edge of the flange, while on the tube 11 there is mounted a holding member 19 in the form of a hollow'cup of an internal diameter to embrace the expanded portion 12 ofthe tube 11, and on the free edge of this cup or holding member 19 are oppositely located teeth 20, these teeth being usually two in number2 although a single tooth will under some clrcumstances answer and a greater number of teeth may be ernployed. The holding member 19 is also provided with finger pieces 21 preferably on opposite sides and projecting axially from the holding member in position to be readily grasped by the fingers.

The pipe or tube 11 is provided with longitudinal flat portions 22 preferably on opposite sides, although a single flat portion will answer and the "cup or holding member 19 is similarly shaped where traversed by the tube 11, so that the holding member is prevented from rotatin on the tube 11, but may be readily move lengthwise thereof. In order to maintain the holding member against the expanded portion' or head 12, the tube 11 is surrounded by a sprin 23 at one end engaging the cup 19 and at The end of the tube 11 remoteA turned axially so that the edective area ofthe passages 28 and 29 may be reduced. The

.cap is so related to the head 12 that the valve 24 has a limited play within the cap seating against the cap adjacent the neck 16 in one direction of movement and seating against the head 12 at the other limit of its movement. The valve 24 has secured thereto by the bolt 27 a spring 30 which when the parts are assembled extends into the expanded end 12 of the tube 11 and bears thereagainst, the tendency of the spring 30 being to hold the valve 24 seated against the cap 15 andthe parts are so arranged that when the valve is seated against the cap 15 the orts or passages 28 and 29 are closed by tlie cap 15 and consequently flow of air or other fluid into the pipe 11 through the neck 16 is prevented.

Let it be assumed that the valve 2 is open, wherefore, except for the presence of the valve 24, there is a free passage from the neck 16 through the pipe 11, elbow 9, valve 2, and pipe 4 to the interior of the manifold 1.

It frequently occurs that in the operation of gasolene engines, especially automobile engines, the carbureter mixture is not sutlciently intimate and also is too rich, wherefore the'ent-rance of additional air is of advantage for diluting the mixture and, moreover, by causing the entrance of this additional air into t-he mixture coming from the carbureter, in amultitude of tine streams breaks up the richer mixture and causes an intimate association of the particles of the mixture resulting in increased power in the engine. The injection of additional air, however, must be in accordance with the speed of the engine and also with the size and character of the engine. For this purpose the valve 24 is provided so that the air flows into the engine only-When the siict-ion causing the flow of the charge through the manifold 1 reaches a degree determined by the position of the cap 15 on the head 12, whereby the tension of the spring resistant to the o ening of the valve 24 is adjusted. This is rought about by screwing the cap 15 to a greater or less extent'on the head 12, the holding cup 19 being withdrawn from engagement with the cap 15 by moving it along the pipe 1 1 against the action of the nordici.

`whereby the ports made up of the coacting passages 28 and 29 are made effectively larger or smaller. The action of the valve 21, therefore, depends upon the tension -ofthe spring 30 andthe effective size of the ports made up of the passages 28 and 29. I `urthermore, intermixture of the iuid entering through the device into the manifold with the charge passing through the manifold is rendered more effective by the presence of the gauze sleeve 7 which breaks up the incoming streams issuing from the perfor-ations 6 into a multitude of minute streams.

In the installed device the neck 16 is upright and when the engine is not running the valve 2a is closed, wherefore the neck 16 constitutes a cup into. which a suitable quantity of gasolene may be introduced and by turning over the engine with the valve 2 open this gasolene is sprayed into the manifold 1 in conjunction with air coming through the neck 16 when emptied of gasolene, and such air also iiows along the manifold 1 thus forming an initial charge which is carried into the engine and compressed and exploded, giving an initial impulse to the engine which by the power thus furnished will rotate enough tlmes to cause the proper operation of the carbureter and the continued running of the engine.

Explosion engines are often liable to accumulations of carbon in the cylinders and ports by deposition from the exploded charges, and such carbon is quite readily softened by the use of kerosene. When it is desired to clean out the deposited carbon from the engine the valve 2 is opened and kerosene is poured into the neck 16 while the engine is running, the pouring being continued until a suitable quantity of kerosene, say a pint, more or less, is drawn into the manifold 1 and from thence into the cylinder or cylinders of the engine, where it attacks the carbon and softens the same to such anextent that the force of the eX- haust will carry the softened and loosened carbon from the cylinders and valves to the atmosphere.

The disks 25 and 26 of the valve 24 may be otherwise shaped than shown in Figs. 2 and 3, for instead of ports in the form of perforations o'r passages 28 and 29, each disk may have peripheral angle notches 28a as in F ig. 5 or rounded notches 29aL as in Fig. 6, the disks -of the v-valve Ibeing adjustable .one relative --to the other to varythe effective area,l of the notches .or peripheral passages as in the Aform shown in Figs. 2 and 8;

1. An attachment for explosion engines, comprising-a ducthaving at-one end multiapertured means introducible intothe manifold of the engine .between the carbureter and the explosion chamber of said engine, and at thefother end having avalveseatprovided with a freely'open prolongation to forma receptacle for liquid, a valve in operative relation to the valve seat and in normally closing relation to the corresponding end of the duct and constituting the bottom of the receptacle, and elastic means on the side of the valve remote from the receptacle and tending to hold the valve in the closed position and also yieldable to the action of suction produced inthe manifold.

2. An attachment for .the manifolds of eX- plosion engines between the carbureter and explosion chamber of the engine, including in its construction a valve, a valve casing housing th valve, a support for the casing along which the latter is adjustable in the direction of movement of the valve in the casing, and locking means for holding the casing in adjusted positions, the valve having a normal constraint to theA closed position` and provided with ports for the passage of fluid through the valve when the latter is inthe opened position.

An attachment for gasolene engines adapted to be applied to the manifold between the carbureter and explosion chamber of the engine7 including in its construction a pipe having an expanded end threaded externally, a cap adapted to said threaded end and provided with an axial passage therethrough, a valve comprising two ported disks movable one on the other to determine the effective area of the ports, a spring between the valve and the expandedfend of the pipe, and means for locking the cap in adjusted positions on the expanded end of the pipe to determine' the tension of the spring.

4. An attachment for explosion engines comprising in its construction a conduit having one end adapted to be inserted in the manifold of an explosion engine between vthe carbureter and the explosion chamber of the engine, said end comprising a perforated pipe with a gauze envelop spaced therefrom, a valve in the conduit adapted to be located exterior to the manifold, and another valve in the conduit at the intake end thereof, said last named valve bein yieldable to suction produced in the manifold to. admit fluid to the conduit.

5. An attachment for an explosion enginey adopted to loe applied to the manifold oit the ceptaele for liquid to he introduced into engine between the caibureter and explosion the conduit. chamber thereof, said attachment ineludmg In testimony, that ll claim the foregoing in its construction a conduit having at one as my own, l have hereto'a'hxed my slgna.-

5 end a valve with a normal tendency toward ture in the presence of twowitnesses.

the closed position and yieldable to suction produced at the other end of the conduit, JOHN L HLTN' the said valve being inclosefl in a Yalve ozts- Witnesses:

ing piovided v'vith on exterlor upright neck LAURA E. MILLER,

10 open at the upper end and constituting a re- FRANK Mi BENNEB. 

